body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 20px;
    background-color: #f5f5f5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

h1 {
    text-align: center;
    color: #333;
    margin-bottom: 30px;
}

.upload-section {
    margin-bottom: 30px;
    text-align: center;
}

.visualizer {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 30px;
}

.wall-container {
    position: relative;
    width: 800px;
    height: 500px;
    overflow: hidden;
    border: 2px solid #ccc;
    background-image: url('wallpusty.png');
    background-color: #e0e0e0; /* Domyślne tło, jeśli brak obrazu */
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    margin-bottom: 20px;
}

.print-image {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%); /* Ustawia obraz na środku kontenera */
    max-width: 100%;
    max-height: 100%;
    cursor: grab;
    user-select: none; /* Zapobiega zaznaczaniu tekstu/obrazu podczas przeciągania */
    box-shadow: 0 0 10px rgba(0,0,0,0.3); /* Lekki cień dla lepszej widoczności */
}

.print-image.hidden {
    display: none;
}

.error {
    color: red;
    font-weight: bold;
    margin-top: 10px;
}

.hidden {
    display: none;
}

.status-message {
    font-size: 0.9em;
    color: #666;
    margin-top: 5px;
}

.controls {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

.control-group {
    display: flex;
    flex-direction: column;
    align-items: center;
}

button {
    padding: 8px 16px;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    margin: 5px;
}

button:hover {
    background-color: #45a049;
}

.instructions {
    margin-top: 30px;
    padding: 15px;
    background-color: #f9f9f9;
    border-radius: 5px;
    border-left: 4px solid #4CAF50;
}

.instructions h3 {
    margin-top: 0;
    color: #333;
}

.instructions ul {
    margin-bottom: 0;
}

.size-control {
    margin: 10px 0;
}

.size-control label {
    display: block;
    margin-bottom: 5px;
}

input[type="range"] {
    width: 200px;
    -webkit-appearance: none;
    height: 8px;
    background: #d3d3d3;
    outline: none;
    opacity: 0.7;
    -webkit-transition: .2s;
    transition: opacity .2s;
    border-radius: 4px;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #4CAF50;
    cursor: pointer;
}

input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #4CAF50;
    cursor: pointer;
}

.instruction {
    font-size: 0.85em;
    color: #888;
    margin-top: 5px;
    text-align: center;
}